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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup main |
29 | /** @addtogroup main |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | * @brief Userspace bootstrap thread. |
35 | * @brief Userspace bootstrap thread. |
36 | * |
36 | * |
37 | * This file contains uinit kernel thread wich is used to start every |
37 | * This file contains uinit kernel thread wich is used to start every |
38 | * userspace thread including threads created by SYS_THREAD_CREATE syscall. |
38 | * userspace thread including threads created by SYS_THREAD_CREATE syscall. |
39 | * |
39 | * |
40 | * @see SYS_THREAD_CREATE |
40 | * @see SYS_THREAD_CREATE |
41 | */ |
41 | */ |
42 | 42 | ||
43 | #include <main/uinit.h> |
43 | #include <main/uinit.h> |
44 | #include <arch/types.h> |
44 | #include <arch/types.h> |
45 | #include <proc/thread.h> |
45 | #include <proc/thread.h> |
46 | #include <userspace.h> |
46 | #include <userspace.h> |
47 | #include <mm/slab.h> |
47 | #include <mm/slab.h> |
- | 48 | #include <udebug/udebug.h> |
|
48 | #include <arch.h> |
49 | #include <arch.h> |
49 | 50 | ||
50 | /** Thread used to bring up userspace thread. |
51 | /** Thread used to bring up userspace thread. |
51 | * |
52 | * |
52 | * @param arg Pointer to structure containing userspace entry and stack |
53 | * @param arg Pointer to structure containing userspace entry and stack |
53 | * addresses. |
54 | * addresses. |
54 | */ |
55 | */ |
55 | void uinit(void *arg) |
56 | void uinit(void *arg) |
56 | { |
57 | { |
57 | uspace_arg_t uarg; |
58 | uspace_arg_t uarg; |
58 | 59 | ||
59 | /* |
60 | /* |
60 | * So far, we don't have a use for joining userspace threads so we |
61 | * So far, we don't have a use for joining userspace threads so we |
61 | * immediately detach each uinit thread. If joining of userspace threads |
62 | * immediately detach each uinit thread. If joining of userspace threads |
62 | * is required, some userspace API based on the kernel mechanism will |
63 | * is required, some userspace API based on the kernel mechanism will |
63 | * have to be implemented. Moreover, garbage collecting of threads that |
64 | * have to be implemented. Moreover, garbage collecting of threads that |
64 | * didn't detach themselves and nobody else joined them will have to be |
65 | * didn't detach themselves and nobody else joined them will have to be |
65 | * deployed for the event of forceful task termination. |
66 | * deployed for the event of forceful task termination. |
66 | */ |
67 | */ |
67 | thread_detach(THREAD); |
68 | thread_detach(THREAD); |
- | 69 | ||
- | 70 | udebug_stoppable_end(); |
|
68 | 71 | ||
69 | uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry; |
72 | uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry; |
70 | uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack; |
73 | uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack; |
71 | uarg.uspace_uarg = ((uspace_arg_t *) arg)->uspace_uarg; |
74 | uarg.uspace_uarg = ((uspace_arg_t *) arg)->uspace_uarg; |
72 | uarg.uspace_thread_function = NULL; |
75 | uarg.uspace_thread_function = NULL; |
73 | uarg.uspace_thread_arg = NULL; |
76 | uarg.uspace_thread_arg = NULL; |
74 | 77 | ||
75 | free((uspace_arg_t *) arg); |
78 | free((uspace_arg_t *) arg); |
76 | userspace(&uarg); |
79 | userspace(&uarg); |
77 | } |
80 | } |
78 | 81 | ||
79 | /** @} |
82 | /** @} |
80 | */ |
83 | */ |
81 | 84 |